Lock.



7N0. 7|0,692. Patented Oct. 7,1902.

f q! HDHAGEN.

LUCK. v

(Application filed. Nov. 30, 1901.)

(No Model.)

m|| m a 5m I i k 'Nrrnn STATES JULIUS HOI-IAGEN, OF VELBERT, GERMANY.

LOCK.

SPECIFICATION forming part of Letters Patent No. 710,692, dated October 7, 1902. Application filed November 30, 1901. Serial No. 84,184. (No model.)

To (tZZ whom, it may concern:

Beit known that I, JULIUS HOHAGEN, a citizen of the German Empire, and a resident of Veloert, Rhenish Prussia, Germany, have invented certain new and useful Improvements in Door-Locks, of which the following is a specification.

This invention relates to an improved latchlock, and more particularly to improved means for operating the latch in a simple and convenient manner.

In the accompanying drawings, Figure l is a front view of myimproved latch-lock. Fig. 2 is a section, partly in side view, on line A B, Fig. 1. Fig. 3 is a section on line C D, Fig. 2. Fig. 4 is a detail showing the position of the parts when the latch is closed, and Fig. 5 a similar detail showing the position of the parts when the latch is open.

The letter a represents a concave semispherical knob having a tubular stem 0. Within the bore Z of this stem is free to slide a push-pin s, the button it of which is received within the hollow of the knob a. The inner end of pin 5 engages one end of a lever h, which is pivoted within stem 0, and the other end of which engages a perforation 0 of the bolt 0.

In use the knob CL is grasped by two fingers and the thumb is pressed upon the button 725,

so as to swing the lever 7L in the direction of the arrow, Fig. 4, and open the latch. Upon releasing the pressure thelatch will be closed by its spring 0 which will also return the lever 71 and pin 3 to their normal position.

The inner threaded ends of the stems c are engaged by nuts m, which are connected by bolts q. Projections n of stem 0 enter corresponding perforations of the lock-plates 'n and hold the knobs a against turning. The nuts m are concealed by face-plates r, that may be adjusted upon the stems c in accordance with the thickness of the door.

What I claim is- A latch-lock composed of a pair of tubular stems havingthreaded sections and projections beyond said threaded sections, pushpins movable within the stems, levers engaged by the push-pins, a latch operatively connected to the levers, perforated lock-plates engaging the stem projections, nuts engaging the stem-threads, and bolts connecting the nuts, substantially as specified.

Signed by me at Dusseldorf, Germany, this 7th day of November, 1901.

JULIUS HOI-IAGEN.

Witnesses:

WM. ESSENWEIN, PETER LIEBER. 

